When did WWII really start? What role did weather play in its start?
Central China flood, 1931 - https://disasterhistory.org/central-china-flood-1931
How Hurricanes Have Shaped the Course of U.S. History - https://www.smithsonianmag.com/history/tracing-history-united-states-through-history-hurricanes-180975436/
Inter-war Period: Causes of WWII - https://inter-wars.weebly.com/japan-invades-manchuria-1931.html
Invasion of Manchuria - https://www.trumanlibrary.gov/education/presidential-inquiries/invasion-manchuria